The UK snow charts are updated every 6 hours and are available in 3 hour steps. These are generated using the high resolution GFS deterministic forecasting model.

The UK ensemble postage stamp' charts are updated every 6 hours and are available in 6 hour steps. These are generated using the high resolution GEFS forecasting model.
Each image shows the output from one of the 22 GEFS runs. This includes the control run and the mean.